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Active NPI 1598711400 Individual Practitioner Male Practitioner

Dr. Robert C Mcmahon , OD

Optometrist • Winona, MN

Professional Overview & Biography Verified Profile Summary

Dr. Robert Mcmahon, OD is a registered healthcare professional specializing in Optometrist in Winona, MN. Practice services are available at 106 E 2ND ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

106 E 2nd St

Winona, MN 559873410

Telephone 5074544640
Associated Practice Facility / Clinic
🏢 Gundersen Clinic, Ltd. Facility NPI 1114971751

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Winona, MN

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 21.3 Yrs
State Avg: 21.7 Yrs
Regional Practice Density
10 Specialists

Practicing in Winona, MN (1178 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License MN 1471

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
38629600 (WI)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
NPI 1356395024

Doctor of Optometry

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 106 E 2ND ST, WINONA, MN 559873410 (Tel: 5074544640)

📍
Updated Business Mailing Address July 08, 2007

Registered at 1836 SOUTH AVE, LA CROSSE, WI 546015429 (Tel: 6087827300)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as ROBERT MCMAHON, OD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Optometrist (License #1471 in MN)

🟢
Initial NPI Registration & Enumeration May 25, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1598711400
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 25, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

1836 South Ave

La Crosse, WI 546015429

Phone: 6087827300

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.